WO2014111055A1

WO2014111055A1 - Retractable handle assembly, and valve and mid-sized bulk container using same

Info

Publication number: WO2014111055A1
Application number: PCT/CN2014/070899
Authority: WO
Original assignee: 上海鸿研物流技术有限公司
Priority date: 2013-01-21
Filing date: 2014-01-20
Publication date: 2014-07-24
Also published as: CN103075564B; EP2947362B1; EP2947362A1; EP2947362A4; US20150369391A1; CN103075564A; US10823309B2

Abstract

Disclosed are a retractable handle assembly, and a valve and a mid-sized bulk container using the handle assembly. A handle (4) in the handle assembly is connected on a valve stem and is able to rotate around a central axis of rotation on the valve stem. When the valve needs to be opened, the handle (4) rotates around the central axis of rotation into a deployed state, in order to open and close the valve; and when the valve is welded to a liner bag of a mid-sized bulk container or mounted to a mid-sized bulk container, the handle (4) rotates around the central axis of rotation into a retracted state, in order to reduce the space occupied by the valve. Furthermore, an erroneous opening prevention boss (411) is also provided on the handle (4) and matches an erroneous opening prevention groove (8) on a valve cap. When the handle is in the retracted state, reduced space is occupied, thereby not affecting the liner bag of the mid-sized bulk container to which the valve is welded. After retraction, the handle is also not easily damaged.

Description

Collapsible handle assembly and valve and medium bulk container therewith

The present invention relates to a medium bulk container, and in particular to a handle assembly for a valve in a medium bulk container. Background technique

Intermediate Bulk Containers (IBC) are a class of packaging turnover containers widely used in the food, biochemical, pharmaceutical, and chemical industries in the international arena. Since the IBC container can be reused many times, it has obvious advantages in filling, storage and transportation, and the IBC container can save 35% of storage space compared with the drum. The size is ISO standard. It is not only suitable for aseptic canning, but also has a compact cabinet, which is convenient for safe and efficient storage in large quantities. Therefore, it is widely used in the transportation, packaging and storage of liquid materials, granules and flakes.

Existing medium-sized bulk containers are available in 820L, 1000L, and 1250L. Typically, they are usually constructed with plastic liners, filling ports, drain valves, side plates, bases, and covers. Since most of the liquids or particulate matter stored in the IBC are pharmaceutical intermediates, beverage concentrates, food additives and even hazardous materials, they are not only valuable but also related to hygiene and safety. Therefore, it is necessary to prevent unauthorized unauthorized use. Protection function for opening or discharging.

Existing valves for medium-sized bulk storage containers generally have a valve that is connected to the inner bag. However, due to the limitation of the position of the valve, the valve handle interferes with the splicing electrode, so the handle is generally made detachable. When the valve is connected, the handle must be removed. When the valve is installed in the intermediate bulk container, the handle is also disassembled due to the space limitation of the valve port. When the valve needs to be opened, the handle is installed and the valve is opened. The action of closing, so that the handle has the risk of loss, the valve can not be opened and closed, and the handle assembly is more cumbersome, less efficient, and labor-intensive. Or, the handle is not disassembled and can not be folded after being installed on the valve, resulting in a large valve space, a large packaging volume of the valve, and the valve handle is easily damaged. Summary of the invention

It is an object of the present invention to provide a valve that is attached to a medium-sized intermediate bulk container and The collapsible handle assembly that switches between the unfolded state and the collapsed state does not affect the assembly of the valve after folding, is not easily damaged, and takes up little space.

To achieve the above object, the present invention provides a collapsible handle assembly for a valve in a medium bulk container, the valve including a valve body, a valve core, and a valve stem, the valve The rod is used to drive the spool to realize opening and closing of the valve, and is characterized by:

a handle in the handle assembly is coupled to the valve stem and rotatable about a central axis of rotation of the valve stem, and when the valve needs to be opened and closed, the handle is rotated about the central axis of rotation to a deployed state, Opening and closing the valve; when the valve is spliced into the inner bag or installed in the intermediate bulk container, the handle is rotated around the rotation center axis to the collapsed state; the handle can be folded to realize the switching between the two working states .

In a preferred embodiment,

The handle assembly includes a handle and a handle pin;

The handle is provided with an integral rotating portion and a grip portion, a center of the rotating portion is provided with a handle pin hole, and a bottom portion of the rotating portion is provided with an elastic boss and a dimple;

The valve stem is provided with a rotating hole and a limiting rib, and the handle pin is inserted into the rotating hole and the handle, so that the handle can rotate around the handle pin to switch between the unfolded state and the folded state. And the elastic boss and the recess cooperate with the limiting rib, so that the handle is stabilized in an unfolded state or a folded state.

In another preferred embodiment,

The handle is composed of a grip portion and a rotating column and a positioning post at one end of the handle; the head of the valve stem is provided with a rotating hole and a limiting slot, and the rotating column of the handle can be inserted into the rotating hole, and simultaneously The positioning post is inserted into the limiting slot such that the handle is rotatable about a central axis of rotation of the rotating aperture to switch between an expanded state and a collapsed state.

The present invention also provides another collapsible handle assembly for a valve in an intermediate bulk container, the valve comprising a valve body, a valve core, and a valve stem, wherein: a handle in the handle assembly is coupled to the valve stem and rotatable about a central axis of rotation on the valve stem;

The handle is provided with an anti-missing device, so that when the handle is in the folded state, the handle cannot be deployed to avoid accidentally opening and closing the valve; When the valve needs to be opened and closed, the handle is rotated to the unfolded state around the central axis of rotation to open and close the valve; when the valve is spliced to the inner bag or installed in the intermediate bulk container, the handle surrounds the rotation center The axis rotates to the collapsed state; the handle can be folded to achieve switching between the two working states.

Preferably, the anti-missing device comprises an anti-missing boss disposed on the handle and an anti-missing slot disposed on the valve cover of the valve, such that when the valve cover is closed, the anti-missing boss is In conjunction with the anti-missing slot, the valve can not be opened and closed. Only when the valve cover is removed, the handle can be deployed and the valve can be opened and closed.

Preferably,

The handle assembly includes a handle and a handle pin;

The handle is provided with an integral rotating portion and a grip portion, a center of the rotating portion is provided with a handle pin hole, and a bottom of the rotating portion is provided with an elastic boss and a dimple, and the anti-missing boss is disposed at The end of the grip; and

Preferably,

The handle is composed of a grip portion and a rotating column and a positioning post at one end of the handle, and the anti-error opening boss is disposed at an end of the grip portion;

The head of the valve stem is provided with a rotating hole and a limiting slot, and a rotating column of the handle can be inserted into the rotating hole, and the positioning post is inserted into the limiting slot, so that the handle can surround the The rotation center axis of the rotation hole is rotated to switch between the unfolded state and the collapsed state.

The present invention also provides a valve for an intermediate bulk container, the valve comprising a valve body, a valve core, and a valve stem, wherein the valve is provided with the above-described collapsible handle assembly.

Preferably, the valve is a ball valve or a butterfly valve.

The present invention also provides an intermediate bulk container comprising a liner, a side panel, a base, a lid, and a discharge valve, wherein the discharge valve is the valve described above.

In the collapsible handle assembly of the present invention, compared to existing valves for use in intermediate bulk containers The handle of the door, because the handle is rotatably mounted on the valve stem of the valve, the handle is not easily lost. Moreover, the handle can be switched between the unfolded state and the collapsed state, and when the handle is in the collapsed state, the space occupied by the handle is small, whereby the handle does not smash the valve into the inner bag of the intermediate bulk container. Have an impact on it. In addition, the handle will not be easily damaged after folding. DRAWINGS

Figure 1 shows a valve for a medium bulk container provided with a collapsible handle assembly in accordance with the present invention;

2 is an exploded perspective view of a first embodiment of a collapsible handle assembly in accordance with the present invention; and FIG. 3 is a perspective view of a corresponding valve stem of a first embodiment of a collapsible handle assembly in accordance with the present invention;

Figure 4 is a cross-sectional view showing the first embodiment of the collapsible handle assembly in an unfolded state in accordance with the present invention;

Figure 5 is a cross-sectional view showing the first embodiment of the collapsible handle assembly in accordance with the present invention in a collapsed state;

Figure 6a shows a front view of a valve to which a first embodiment of a collapsible handle assembly according to the present invention is applied, wherein the handle is in an unfolded state;

Figure 6b shows a front view of a valve to which a first embodiment of a collapsible handle assembly according to the present invention is applied, wherein the handle is in a collapsed state;

Figure 7 is a partial cross-sectional view of the valve when the handle is in the collapsed state to show a perspective view of the mis-opening structure;

Figure 8 shows an exploded perspective view of a second embodiment of a collapsible handle assembly in accordance with the present invention; Figures 9a and 9b show perspective and front views, respectively, of the handle of the second embodiment of the collapsible handle assembly in accordance with the present invention ;

Figure 10a shows a perspective view of a valve to which a second embodiment of the collapsible handle assembly according to the present invention is applied, wherein the handle is in an unfolded state;

Figure 10b shows a perspective view of a valve to which a second embodiment of the collapsible handle assembly according to the present invention is applied, wherein the handle is in a collapsed state;

Figure 11 shows a partial section of the valve when the handle is in the collapsed state to show the structure of the anti-missing structure. Stereo picture. detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail with reference to the appended claims The embodiment shown in the drawings is not intended to limit the scope of the invention, but only to illustrate the spirit of the invention.

Figure 1 shows a valve for a medium bulk container (IBC) provided with a collapsible handle assembly in accordance with the present invention. Intermediate bulk containers (not shown) typically have a base, four side panels, a lid, and a liner bag, which is typically used to hold liquid cargo, such as pharmaceutical intermediates, beverage concentrates, food additives, and even dangerous Materials, etc. A valve is generally provided at the discharge port of the inner bag, and the valve is usually connected to the inner bag of the intermediate bulk container by means of a splicing to facilitate release of the liquid in the inner bag. Valves can be of various types, such as ball valves, butterfly valves, and the like. As shown in Fig. 1, the valve 1 generally includes a valve body 2, a spool (not shown), and a valve stem 3, such that when the valve stem is rotated, the spool can be opened and/or closed to effect the opening and closing of the valve.

The handle 4 is rotatably coupled to the valve stem by a handle pin such that the handle is rotatable about the handle pin. When in use, the handle is rotated around the center of the handle pin to the state of use, and then the valve stem is driven through the valve stem to open and close the valve. When not in use, the handle rotates around the center of the handle pin to a non-use state to reduce valve footprint and prevent damage to the handle and even the valve.

2 shows an exploded perspective view of a first embodiment of a collapsible handle assembly in accordance with the present invention. As shown in Figure 2, the handle assembly includes: a handle 4, a handle pin 5, and a mating structure disposed on the valve stem 3. Specifically, the handle 4 is provided with a grip portion 41 and a rotating portion 42. The grip portion 41 is shaped to match the shape of the corresponding portion of the valve body of the valve that is in contact with the folded handle, so that when After the handle is folded, the space occupied by the handle is as small as possible. The center of the rotating portion 42 is provided with a handle pin hole 421, and a bottom portion of the rotating portion is provided with an elastic boss 422 extending in the axial direction of the handle pin hole 421, and the two sides of the elastic boss 422 are respectively provided along the axis of the handle pin hole 421 Directional pits 423 and 424. A through groove 425 is further disposed at a position corresponding to the elastic boss 422 of the rotating portion 42. The through groove 425 has an elongated cross section for providing an elastic deformation space for the elastic boss 422, and the elastic boss 422 is added. Flexibility.

The end of the grip portion 41 on the handle 4 (also at other locations on the handle) is also provided Anti-missing boss 41 1 , correspondingly, anti-missing groove 8 (shown in FIG. 7 ) is arranged on the valve cover of the valve, and the valve cover is in the process of closing the handle and closing the valve cover. The anti-missing slot will gradually catch the anti-missing boss 41 on the handle. When the bonnet is assembled, the handle is prevented from being accidentally opened, and the handle cannot be opened at this time, and the valve cannot be opened and closed. . When the bonnet is removed, the handle can be deployed and the valve can be opened and closed. This prevents the valve from being mishandled when the valve is not in use, causing the valve to open, and the liquid inside the valve is sprayed to injure people or lose property.

Preferably, the handle pin 5 has a body 51, and a handle pin head 52 having a larger diameter than the body is disposed at one end thereof, and an elastic inverted buckle 53 is provided at the other end, and the front portion of the elastic inverted buckle is slotted, and the reverse buckle is pressed and squeezed. When it is deformed, when the space is released, the buckle is elastically restored. Therefore, after the handle pin 5 is inserted into the handle pin hole 421, it is not easily detached from the handle pin hole 421.

Preferably, the handle 4 is made of a light weight plastic part.

Figure 3 shows a perspective view of a corresponding valve stem of a first embodiment of a collapsible handle assembly in accordance with the present invention. As shown in FIG. 3, the head of the valve stem 3 is provided with a groove 31. The two sides of the groove 31 are lugs 32 and 33, and the lug 32 and the lug 33 are respectively provided with a rotating hole 32a and a rotating hole 33a, respectively. The holes 32a and 33a have the same central axis of rotation. It should be noted that the lugs 32 and the lugs 33 should have a certain strength to resist the force from the handle during the opening and closing of the valve, that is, during the rotation of the handle, thereby preventing the lugs from being damaged, reaching the handle and the valve stem. Synchronized movement.

In addition, a limiting rib 31a extending in the direction of the rotation center axis is provided at the bottom of the groove 31 for cooperating with the elastic boss 422, the dimple 423, and the dimple 424 on the handle, so that the handle can be respectively stabilized The ground remains in the collapsed state and the open state.

The bottom of the valve stem 3 is provided with a structure that cooperates with the valve core of the valve, etc., and the structure can be a corresponding structure on the stem of any existing valve, and will not be described in detail herein.

When assembled, the rotating portion 42 of the handle 4 is inserted into the recess 31 of the valve stem 3, the handle pin hole 421 on the handle is aligned with the rotating holes 32a, 33a of the valve stem 3, and the handle pin 5 passes through the valve stem 3 and The handle 4, using the elastic buckle 53 on the handle pin 5, when the handle pin 5 passes through the valve stem 3 and the handle 4, the elastic undercut 53 will buckle the outer side of the lug of the valve stem 3, so that the handle pin and the valve stem It is integrated with the handle and does not fall off.

When it is necessary to open the valve, as shown in FIG. 4, the handle 4 is rotated by the handle pin axis as a central axis of rotation (clockwise rotation as shown) at a certain angle, so that the handle is in use, At this time, the elastic boss 422 and the recess 424 of the handle 4 cooperate with the limiting rib 31a of the valve stem 3 so that the handle is at a relatively stable elastic limit point.

When it is not necessary to open the valve, as shown in FIG. 5, the handle 4 is rotated by the handle pin axis as a central axis of rotation (counterclockwise rotation) at a certain angle, so that the handle is in a collapsed state (non-use state), At this time, the elastic boss 422 and the recess 423 of the handle 4 cooperate with the limiting rib 31a of the valve stem 3, so that the handle is at another relatively stable elastic limit point.

Figure 6a shows a schematic view of the handle assembly of the present invention assembled into a valve and in an unfolded state. As shown, when the valve needs to be opened or closed, the handle can be deployed to facilitate the opening and closing of the valve.

Figure 6b is a schematic view showing the structure of the handle assembly of the present invention assembled to a valve and in a collapsed state. When the valve is not in use or when the valve is attached to the bladder bag, the handle can be folded. Since the handle is closed, it is close to the valve body and takes up little space, so it does not affect the connection of the valve to the inner bag, and the valve is not affected when assembled into the intermediate bulk container.

Figure 8 shows an exploded perspective view of a second embodiment of a collapsible handle assembly in accordance with the present invention. Figures 9a and 9b show a perspective view and a front view, respectively, of the handle 6. As shown in FIGS. 9a and 9b, the handle 6 is composed of a grip portion 61 and a rotating column 62 and a positioning post 63 at one end of the handle, wherein the grip portion 61 is shaped such that the handle 6 is in a collapsed state (non-use state). When the handle is in conformity with the shape of the valve body of the valve at a corresponding position in contact therewith, thereby reducing the volume occupied by the handle after folding. The positioning post 63 has a head portion 63b having a cross-sectional area larger than the cross-sectional area of the root portion 63a. The head of the valve stem 7 is provided with a rotating hole 71 and a limiting groove 72 into which the rotating column 62 of the handle can be inserted. The positioning post 63 is inserted into the limit groove 72 such that the handle 6 is rotatable about the central axis of rotation of the rotary hole 71 to switch between the expanded state and the collapsed state. The limiting groove 72 is shaped such that when the positioning post 63 is inserted therein, the positioning post 63 can slide along the limiting groove 72 without coming off the limiting groove 72.

The end of the grip portion 61 on the handle 6 (also at other positions on the handle) is further provided with an anti-missing boss 61 1 . Accordingly, an anti-missing slot 9 is provided on the valve cover of the valve (eg Figure 1 1), when the handle is in the folded state, in the process of the bonnet cover, the tamper-proof slot of the bonnet will gradually hang the anti-missing boss 611 on the handle, and the bonnet is assembled. Then, the handle is prevented from being accidentally opened, and the handle cannot be turned on at this time, and the valve cannot be opened and closed. When the bonnet is removed, the handle is ready For the unfolding action, the valve can also be opened and closed. This prevents the valve from being mishandled when the valve is not in use, causing the valve to open, and the liquid inside the valve is sprayed to injure people or lose property.

Figures 10a and 10b respectively show a perspective view of a valve to which a second embodiment of the collapsible handle assembly according to the present invention is applied, wherein the handle of Figure 10a is in an unfolded state and the handle of Figure 10b is in a collapsed state. As shown in Figures 10a and 10b, when the handle 6 is assembled to the valve stem 7, the handle 6 is rotatable about the spin column 62. When deployed, the handle is rotated about 90 degrees counterclockwise to complete deployment. When folded, the handle is turned clockwise by about 90 degrees to complete the folding.

In the collapsible handle assembly of the present invention, the handle is not easily lost because the handle is rotatably mounted on the valve stem of the valve as compared to the prior art handle for the valve in the intermediate bulk container. Moreover, the handle can be switched between the unfolded state and the collapsed state, and when the handle is in the collapsed state, the space occupied by the handle is small, whereby the handle does not smash the valve into the inner bag of the intermediate bulk container. Have an impact on it. In addition, the handle will not be easily damaged after folding.

The preferred embodiments of the present invention have been described in detail hereinabove, and it is understood that various modifications and changes may be made by those skilled in the art. These equivalent forms are also within the scope defined by the claims appended hereto.

Claims

Rights request

What is claimed is: 1. A collapsible handle assembly for a valve in an intermediate bulk container, the valve comprising a valve body, a valve core, and a valve stem, the valve stem for driving the valve The core moves to achieve the opening and closing of the valve, which is characterized by:

a handle in the handle assembly is coupled to the valve stem and rotatable about a central axis of rotation of the valve stem, and when the valve needs to be opened and closed, the handle is rotated about the central axis of rotation to an expanded state to Opening and closing the valve; when the valve is spliced into the inner bag or installed in the intermediate bulk container, the handle is rotated around the rotation center axis to the folded state; the handle can be folded to realize the switching between the two working states .

2. The collapsible handle assembly of claim 1 wherein:

The handle assembly includes a handle and a handle pin;

3. The collapsible handle assembly of claim 1 wherein:

4. A collapsible handle assembly for a valve in an intermediate bulk container, the valve comprising a valve body, a spool, and a valve stem, characterized by:

A handle in the handle assembly is coupled to the valve stem and rotatable about a rotational central axis on the valve stem;

The handle is provided with an anti-missing device, so that when the handle is in the folded state, the handle cannot be deployed to avoid accidentally opening and closing the valve;

When the valve needs to be opened and closed, the handle is rotated to the unfolded state around the central axis of rotation to Opening and closing the valve; when the valve is spliced into the inner bag or installed in the intermediate bulk container, the handle is rotated around the rotation center axis to the folded state; the handle can be folded to realize the switching between the two working states .

5. The collapsible handle assembly according to claim 4, wherein: the anti-missing device comprises an anti-missing boss disposed on the handle and an anti-missing slot disposed on the valve cover of the valve, When the bonnet is closed, the valve can not be opened and closed under the cooperation of the anti-missing boss and the anti-missing slot. Only when the bonnet is removed, the handle can be deployed and the valve can be operated. Opening and closing action.

6. The collapsible handle assembly of claim 5, wherein:

The handle assembly includes a handle and a handle pin;

7. The collapsible handle assembly of claim 5, wherein:

8. A valve for an intermediate bulk container, the valve comprising a valve body, a valve core, and a valve stem, characterized in that: the valve is provided with the collapsible according to any one of claims 1-7 Handle assembly.

9. A valve according to claim 8 wherein the valve is a ball or butterfly valve.

10. An intermediate bulk container, the intermediate bulk container comprising a liner, a side panel, a base, a lid, and a discharge valve, wherein: the discharge valve is the valve of claim 8.